Memory Corruption Vulnerability Affects Firefox and Thunderbird
CVE-2024-11704

9.8CRITICAL

Key Information:

Vendor
Mozilla
Status
Firefox
Thunderbird
Firefox Esr
Vendor
CVE Published:
26 November 2024

Summary

A double-free vulnerability exists within the sec_pkcs7_decoder_start_decrypt() function in Firefox and Thunderbird. This issue arises during error handling, where, under certain conditions, the same symmetric key could be incorrectly freed twice. This flaw exposes the applications to potential memory corruption risks, affecting performance and stability. Users of Firefox versions prior to 133 and Thunderbird versions prior to 133 should take immediate action to update their software to mitigate this risk.

Affected Version(s)

Firefox < 133

Firefox ESR < 128.7

Thunderbird < 133

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1899402
https://www.mozilla.org/security/advisories/mfsa2024-63/
https://www.mozilla.org/security/advisories/mfsa2024-67/

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ronald Crane
.